20573573986 has 16 divisors (see below), whose sum is σ = 35329081536. Its totient is φ = 8802221616.

The previous prime is 20573573963. The next prime is 20573574019. The reversal of 20573573986 is 68937537502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1243521 + ... + 1259956.

It is an arithmetic number, because the mean of its divisors is an integer number (2208067596).

Almost surely, 2^20573573986 is an apocalyptic number.

20573573986 is a deficient number, since it is larger than the sum of its proper divisors (14755507550).

20573573986 is a wasteful number, since it uses less digits than its factorization.

20573573986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2504073.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 20573573986 in words is "twenty billion, five hundred seventy-three million, five hundred seventy-three thousand, nine hundred eighty-six".